Version 1.16 has a variety of fixes, but the biggest one is introducing the concept of startup-screen widgets, which make use of the empty space you see prior to opening a .biq. The first two are Copy Settings (which appears on the first run, and does lets you copy settings from a previous editor folder), and Resume Editing, which is a quick link to re-open the most-recently-edited BIQ.
See the thread for full details, including the rest of the changes in 1.16.